Shaft-packing for steam-turbines.



110.800,035. PATENTED JULY 10, 1907.k 0. v. KEER.

SHAFT PACKING FOR STEAM TURBINBS. APPLIUATION Hmm Nov. s, 1000.

y 2 sums-SHEET 1.

OnARLRsv. karts, OF WELLSVILLE, NEW YORK', AssIeNoR To KERR TURBINR oOM'rANY, l OF wELLsVlLLE, NRW YORK, A CORPORATION OF'NEW YORK. L

sHAF'rfPACKING :son STEAM-TURBINEs.'

. Specification of Letters'Patent., .I Application filed .Novmbor 5,1906. Serial No. 342,042,

To all twhom 'it mag/comm: t

Be it known thatl, CHARLES V. KERR, a citizen of the United States, residing at Wellsville, in the county of Allegany and State of New York, have invented certain new and useful Improvements in Shaft-Packings for Steam-Turbines, 'of which the following vis ay specification.

with means for applying pressure to both said packingsy to properly adjust the same; to provide such a combined packing and bearing with means for preventing longitudinal movement of the shaftythe packing and the bearing and elements coperating therewith being so designed and arranged as to be readily disassembled to permit inspection or repair without necessitating the removal of the main shaft of the` turbine and disks l'carried thereon; and to the above nds my invention consists ofl the features of construction and relativev arrangement of elements hereinaftermore particularly disclosed in the specification and defined in the ap- -line 3--3 of Fig. l.

pended claims.

In the accompanying drawings, inwhiclil similar reference characters indicate the same parts inthe several views, Figure 1is acentral vertical longitudinal section of the device on the line 1-1 'of Figs. 2 and 3; Fig. 2, is an elevation viewed from outside the turbine casing; Fig. 3,4is a vertical Referringto the drawings, the reference numeral 1 designates a portion of the casing of the turbine, and 2 the shaft thereof. The casing l supports the combined shaft packing and bearing as shown fOr-which purpose it is bared concentric with the shaft, and in the opening thus formed is located the main shaft bearing 31 lThis bearing is madel of bronze ,or other suitable'material, and after havingv been turned in cylindrical form, is

split longitudinally in order that it may be easily put in pla-ce and readilyremoved from the casing.j This bearing -is provided with a projecting portion A,

y `adapted to be engaged bythe cap piece 5 for the purpose of securing'the bearing in place.

6': is a collairl,jd'e'tachably4 secured in lanysuitable` manner ashy a screw 6 tothe shaft 2, one face of which bears againstthe 'main bearing 3 as shown, while the ,other face thereof ,is` engaged by a ring 7 supported by,

means ofy pin k7 7 to an upwardly extending ledge 8 of the cap piece 5. It will thus be seen that the collarwhile section upon the in 'its adjusted position.

p I-atented July j tudinal movement, and the disks carried by the shaft maintained in line with the nozzle of the`turbine.

free to rotate with the shaft 2 is `restrained as to longi 9 'is an inside-packing located in the opening in the casing carrying the shaft bearing, and designed to prel vent the iow of oil along the shaft toward the interior of the turbine casing, or ythe flow of steam from said casing. 10 is an inside follower located in a recess l1 formed in the casing 1, through which follower the requisi te pressure maybe'applied tothe inside packing.

12 is an outside packing located in a recess in the cap piece 5 as shownv to prevent the flow of oilA along-the shaft, and 13 is an outside follower through which the I requisite pressure may be applied ing. I

The inside and outside followers .are connected by rods 14, 14 engaging kthe inside follower and having to the outside pack- 4lock nuts 15- at their outer extremities. These rods pass through openings in the casing, and are surrounded by packing glands,-16, to prevent the passage of steam outward or of air inward 17 ,is a cover plate, covering the recess 1l in which is located the inside follower l0 and may be securedto the casing in any suitable manne.-

18 represents a series of stud bolts by means of which .the cap piece 5'is secured to the casing 1; and 1 9, 19,

are oil slingers designed to intercept oil traveling along the shaft and'throw it therefrom by centrifugaly action in a manner well known, suchA oil being conducted from the recess /ll and from a Cavity 20 in the outside follower 13 byany suitable means. i

It is intendedthat oil Willbe supplied to this bearingunder some pressure, so that the bearing 3, collar 6,

and ring 7 will at all times be submerged in oil; to

22 through which end I provide a passage 2l and p'ipe which oil is supplied to the bearing.

From the constructionabove set forth it will be seen that upon loosening the inner lock nut l5 and screwing up the outer lock nut so as to draw the followerslO and 12.through the follower 13, and at the same time and bythe sameact pressureis also applied to the. inside 13 together, pressure is applied to the outside packing packing, 9,l through. the follower 10 'and rods 14; and V ings has been securedthe innerlock nut is tightenedv up and the whole" adjusting rnechanism'securely held My construction .alsojpennits the dready disassembling of the-whole combined packing andA bringand the removal of theshaft bearing member thereof for in-I spection and renewal, without removing the shaft from vthe turbine'casing or interfering with its adjustment therein. 'ro accpmpush this, aie fasteiiings of the i01- lower 13 and cap piece 5 are removed, thus allowing them to be moyed along the shaft out oi the way. The

l Havingnow fully described my invention', what I claim as new and desire to secure by Letters Patent \is:-

1. In a combined shaft packing andfbearing for elastic iiuid turbines, a turbine casing, an opening therein, a shaft 15 bearing supported sin said opening and secured against longitudinal movement, a rotary horizontal shaft supported in said bearing, packing located in said opening be tween the bearing and the interior of the casing, and means for compressing said packing.

2.\. ln a combined shaft packing and bearing for elastic iiuid turbines, a turbine casing, an opening therein, a shaft hearing comprising a plurality of sections supported in said opening and secured against longitudinal movement, n.

rotary horizontal shaft supported in said bearing, packing located 4in said opening between .-the bearing and the interior of the casingaand means for compressing said packing.

' 3. In a combined shaft packing and bearing fore'lastic fluid turbines, a turbine casing, an opening therein, a

' shaft' bearing supported vin said opening and secured against longitudinal movement, a rotary horizontal shaft supported in said bearing, packing located'in said opening between the bearing and the interior of the casing, and

- means operable from without the casing'for compressing said packing.' i

4. In acombined shaft packing and bearing for elastic IiuidV turbines, a turbine casing, an opening. therein, a shaft bearing supported in said'opening and secured against longitudinal movement, a rotary horizontal shaft supported iu said bearing, packing located in-said opening be- `40 tween the bearing and the interior of the casing, a follower engaging said packing, rods engaging said follower andfextending without the casingy and means for moving said rods to thereby compress the packing.

5. in a combined shaft packing and bearing for elastic iiuid turbines, a turbine casing, an opening therein, a shaft bearing-supported in said opening and secured against longitudinal movement, a rotary horizontal shaft supported in said bearing,l packing located in said opening' between the bearing and the interior of the casing, a recess in the casing adjacent the inner end of said packing, a

follower located in said recess for compressing said packing, means operable from without the casing for moving said follower toward the bearing to thereby compress the packing, and av cover plate for said recess.

G. in a combined 4shaft. packing and bearing for elastic i'luid turbines,a turbine casing, an opening therein, a shaft bearing supported in said opening Aand secured against lon` giiudinal movement., a'rotary horizontal shaft supported in said hearing, packing located in said opening between the bearing and the interior of the casing, a follower engaging said packing, threaded rods engaging said. follower and extending without the casing, and nuts upon the threaded portion of the rods, whereby the rods may be moved to thereby compress the packing.

6 7. In a combined shaft packing and bearing for elastic fluid turbines, a turbine casing, an opening therein, a shaft bearing supported in said opening and secured against longitudinal movement, a rotary horizontal shaft supported tiuid turbines, .a turbine casing, 'an opening therein, a

`a recess in the casing adjacent the innerend of said packing, a follower locatedin said recess and engaging said 8. In a combined shaft packing and bearing for elastic fluid turbines, u turbine casing, an opening therein, a. shaft bearing supported in said opening and secured against longltudlnal movement, packing located in said opening-be-l tween sald bearings and the interior of the casing, a second packing located between the bearing and the external atmosphere, and means to simultaneously compressl both said packings.

9. In n combined. shaft packing and bearing for elastic fluid turbines, a turbine casing, an opening therein, a shaft bearing supported ln said opening and secured against Iongitudlnal movement, packing located in said opening between sald bearing and the interior of the casing, a sec- 90 ond packing located between the bearing and the external atmosphere, and means operable from without the casing for simultaneously compressing both said packlngs.

10. In a combined shaft packing and bearing for elastic fluid turbines, a turbine casing, an opening therein, a shaft 9 5 bearing supported in said opening and secured against longitudinal movement, packing located in said opening between the bearing and the interim-'of the casing, a follower engaging said packing, a second packing located between the bearing. and the external atmosphere, a second follower engaging said 'second packing, rods engagingv said first mentioned follower an'd extending without said casing and through openings in said second follower, and means coperating with said rods for varying the distance between said followers to thereby simultaneously compress both said packlngs.

11. In a combined shaft packing and bearing for elastic fluid turbines, a turbine casing,an. opening therein, 'a shaft bearing supported in said opening and secured against longitudinal movement, packing located ln said opening between the bearing and the interior of the casing, a fol lower engaging said packing, a second packing located between the bearing and.the external atmosphere, a second follower engaging said second. packing, threaded rods cngaging said first mentioned follower and extending without said casing and through openings'in said second folf lower, and nuts upon the threaded ends of said rods whereby the'followers may be simultaneously moved toward each other and both packings thereby compressed.

12. In a combined shaft packing and bearing for elastic shaft bearing supported in said opening`and secured against longitudinal movement, packing located in said opening between the bearing and the interior of the casing,

packing, a cover plate for saidrecess, a second packing located between the bearing and the external atmosphere, a second follower engaging said second packing, threaded rods engaging said first mentioned follower and extending without said casing and through openings in said second follower, and nuts upon the threaded ends of said rods, whereby l the followers `1na`y be simultaneously moved toward each other and both packings thereby compressed.

13. In a combined shaft packing and bearing f or elastic fluid turbines, a turbine casing, an opening therein, a cap piece secured to said casing, a shaft bearing supported in said opening and provided With a` projection extending between the cap and casing, whereby the bearing is secured against longitudinal movement, packing located in the opening in the casing` and between the bearing and the` interior of the casing, a recess in said cap piece, a second packing located in said recess, followers adapted to engage said packings, rods /egaging both said followers, any

means operable from without the casing and coperatlng with said rods for varying the distance between said followers to thereby simultaneously' compress both said par-kings. l l

14. ln a combined shaft packing and bearing for elastic fluid turbines, a turbine casing, an opening therein, a cap ]5() osmosisV .opening in the casing and between the bearing and the interior of the casing, a recess in the casing adjacent the innei end of said packing, a' coverplate for said recess. a recess in saidcap piece, a second packing located in said Xrecess, followers adapted to engage said parkings, threaded 4parkings simultaneously compressed.

rods engaging both said followers, a'nd nuts upon the .threaded outer ends of said rods, whereby the distance between the followers may be varied and the parkings simultaneously compressed.

16. In a combined shaft packing and bearing for. elastic fluid turbines, a turbine casing, an opening therein, a cap piece'secured to said casing, a shaft bearing supported in said .opening and provided with a projection extending between the cap and casing, whereby the bearing is secured against longitudinal movement, vpacking located in the opening in the casing and between the bearing and the interior of the casing, a recess in the casing adjacent the inner endvof said packing, a cover plate for said recess, agrecess in said cap piece, a second packing located in said recess, iollowers'adapted to engage said packings,

'threaded rods engaging both said followers, glands for said rods located between the cap piece and casing, and mits upon the threaded outer ends of said rods, whereby the distance between the followers may be varied and the 17. In a combined shaft packing and bearing for elastic fluid turbines, a shaft, two packing members located at a distance fromeach other, a bearing for said shaft located between said packingy members, and means, located also between said packing members, for preventing longitudinal movement of said shaft.

'18. In a combined shaft packingand bearing for elastic fluid turbines, a shaft, two packing'members located at a distance from each other, a bearing for said shaft located between said packing members, a'bejaring ring, and a collar upon the shaft between the bearing and ring and in contactwith both, whereby longitudinal movement of said shaft is preventedl 19. In a combined shaft packing and bearing lfor elastic fluid turblnes,.a shaft,- a turbine casing, an opening therein, a shaft bearing comprising a plurality of sections supi?y ported in said opening and secured against longitudinal movement, a bearing ring,` a collar secured to sad`shaft and located between th outer end of the bearing and the bearing ring, packing located in said opening between the bearing r1nd the. interior of the casing, and means operable from without the casing for compressing said packing.

20. In a combined shaft packing and bearing for elastic fluid turbines, a shaft, a turbine casing, an opening therein, a shaft bearing comprising a plurality of sections supported in said opening and secured against longitudinal movement, a bearing ring, a collar secured to said shaft and located between the outer end of the bearing and the bearing ring, packing located in said opening between thc bearing and the interior'of the casing, a follower engaging said packing, rods engaging said follower and extending without the casing, and means for moving said rods to thereby compress the packing.

21. In a combined shaft packingv and bearing for elastic fiuid turbines' a shaft, a turbine casing, an opening therein,-a shaft bearing comprising a plurality of sectionsv whereby said rods may 'be moved to thereby compress the packing, anda'cover platefor said recess.

22. In a combined shaft packing and bearing .for elastic' fluid turbines, a shaft, a turbine casing, an opening therein, a shaft bearing comprising a plurality of sections supported insaid opening and secured against longitudinal movement, a' bearing ring, a 'collar secured to said, shaft and located between thc'outcr end of the' bearing and the bearing ring; packing located in said opening between the bearing and the interiorv of the casing, a second packing located between the bearing ring and the external atmosphere, and means operabl'e from without the casing for simultaneously compressing both said packings.

23. In a combined shaft packing` and-bearing for elastic fiuid turbines, a shaft, a turbine casing, an opening therein, a shaft bearing comprising a plurality of sections supported in sa'id opening and secured against longitudinal movement, a bearing ring, a collar secured to said shaft and located between thc outer end of thc bearing and the 'bearing ring, packing located in said opening between the" bearing and the interior of the casing, a follower` engaging said.packi ng, a'second packing located between the bearing ring and the external atmosphere, a second follower engaging said second packing, rods engaging said first mentioned follower, and extending without said casing and through openings in said second follower,.and means cooperating with said rods for varying the distance between said, followers to thereby simultaneously cofnpressboththe bearing and the bearing ring, packing located in the opening` in the casing, and between the bearing and the -in-,

terior of the casing, a recess in said cap piece, a second packing located in said recess, followers engagingsaid packings, rods connecting said followers, and means cooperating with said rods for varying the distance between s aid followers to, thereby simultaneously'compress both said packings.

25. Ina combined shaft packing and bearing for elastic fluid turbines, a shaft, a 'turbine casing, an opening therein, a cap piece secured to said casing-a shaft bearing comprising a plurality of sections supported in said o pcn-.. ing and provided with a projection extending between the cap and casing, a bearing ring carried by said cap, a collar secured tosaid shaft and located between the outer end'of the bearing and the bearing ring, packing located in the opening in4 the casing and between the bearing and the interior of the casing, a recess in` said cap piece, a second packing located invsaid recess, followers adaptedto engage said packings, threadedrods engaging both said followers,

secured to said shaft and located between the outer end of the bearing and-the bearing ring, packing located in the Y opening in the casing, a recess in said casing adjacent the;

inner end of said packing, a.cover plate for said recess, a

follower'in said recess engaging said packing, a recess in said cap piece, a second packing located in said recess, a

second follower engaging said second packing, threadedrods engaging ,both said followers, and-nuts upon the threaded outer ends of said rods whereby said parkings may be simultaneously compressed.

In testimony whereof I affix my signature two witnesses.

CHA anus v. kann.

Witnesses:

' E. A. RATHBONE,

Gnu. I5. RoorH, Jr.

in presence of 

